Crusted Sore vs Brown

How close are they?

ΔE 11.6, fair: the same colour family, but not a straight swap. Brown is a little lighter, warmer than Crusted Sore.

Can I use Brown instead of Crusted Sore?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Brown is a little lighter, warmer than Crusted Sore.

Can I use Crusted Sore instead of Brown?

The same difference applies the other way round: Crusted Sore is a little darker, cooler.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.